Java JNI。java中通过JNI接口与C或C++编写的本地代码库（*.DLL）互相调用。 本例中不但在Java中调用C++代码，而且在C++代码中访问Java变量并修改。-Java JNI. java through JNI interface with C or C++ prepared native code library (*. DLL) call each other. In this case not only i